RX-0 Unicorn Gundam (RX-0ユニコーンガンダム) is a Newtype intensive Mobile Suit. It's the first Mobile Suit of its type to have a movable exoskeleton for its full body Psycoframe system. A Mobile Suit tailored made to react to its pilot's every thought, it requires a great amount of fuel and concentration to be used. Unicorn Gundam utilizes a NT-D system to morph into a different form. To the public record, it's an abbreviation of "New Type Drive". In reality, the system is called "New Type Destroyer". As its name states, it's a system made to actively seek the extermination of Newtypes or Cyber-Newtypes by utilizing the Psycoframe to track their every movement. If the pilot is a Newtype, they can use the NT-D system to optimize their own capabilities.

A highly responsive Mobile Suit, it requires the pilot to be mentally alert and focused at all times. Unicorn Gundam may let its pilot move at amazing speeds, but, if the pilot isn't careful enough, the acceleration can become dangerously painful to them. The sheer concentration needed to activate and use the NT-D system is also the reason why it can only be used during limited times in battle. Due to the amount of information that is dumped into the pilot's brain to augment their performance in battle, the time that the NT-D can remain active is insignificant before the pilot suffers from brain fatigue and expires. Ironically enough, the NT-D system's full potential is much more suited and more easily unlocked by a Newtype pilot.

When Unicorn Gundam performs any one of its SP attacks, it will activate its Destroy Mode. It can stay in this form for 30 seconds. When it reverts to Unicorn form, the Mobile Suit automatically stops the player's movements to change back. The Mobile Suit's actions change when this mode is activated (SP attacks are the same for both modes).